// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "net/disk_cache/blockfile/mapped_file.h"

#include <algorithm>
#include <memory>

namespace disk_cache {

// Note: Most of this class is implemented in platform-specific files.

bool MappedFile::Load(const FileBlock* block)
{
    size_t offset = block->offset() + view_size_;
    return Read(block->buffer(), block->size(), offset);
}

bool MappedFile::Store(const FileBlock* block)
{
    size_t offset = block->offset() + view_size_;
    return Write(block->buffer(), block->size(), offset);
}

bool MappedFile::Preload()
{
    size_t file_len = GetLength();
    std::unique_ptr<char[]> buf(new char[file_len]);
    if (!Read(buf.get(), file_len, 0))
        return false;
    return true;
}
} // namespace disk_cache
